(S)-2,5-Dihydroxy-3-methyl-6-(1,2,2-trimethylcyclopentyl)-2,5-cyclohexadiene-1,4-dione 13491-25-3 2,5-Cyclohexadiene-1,4-dione, 2,5-dihydroxy-3-methyl-6-(1,2,2-trimethylcyclopentyl)-, (S)-